package com.leigang.springboot.netty.demo;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;

/**
 * @author leigang
 * @description: netty练习
 * @date 20/7/5  13:29
 */
public class HelloNetty {
    public static void main(String[] args) throws Exception {
        //定义一对线程组
        //主线程组，用于接收客户端的连接，但是不做任何处理
        EventLoopGroup bossGroup = new NioEventLoopGroup();
        //从线程组，老板把任务交给他，让手下线程组去做任务
        EventLoopGroup workerGroup = new NioEventLoopGroup();

        try {
            //netty服务器创建    设置主从线程组   设置nio的双向通道   子处理器
            ServerBootstrap serverBootstrap = new ServerBootstrap();
            serverBootstrap.group(bossGroup, workerGroup)
                    .channel(NioServerSocketChannel.class)
                    .childHandler(null);

            //启动server  并设置8088为启动端口号  同时启动方式为同步
            ChannelFuture channelFuture = serverBootstrap.bind(8088).sync();
            //监听关闭的channel  设置为同步方式
            channelFuture.channel().closeFuture().sync();
        } finally {
            bossGroup.shutdownGracefully();
            workerGroup.shutdownGracefully();
        }

    }
}
